People with multiple Facebook accounts, profiles for pets, “zombie blondes.” These are a few examples of the 83.09 million fake users Facebook revealed this week as part of the social network's first public quarterly earnings report.

These fake accounts make up 8.7 percent of Facebooks 955 million monthly active users.

Sometime in his late 30s, after his hair had been thinning for several years, Dr. Albert Mannes decided to shave what was left of his mane. He then noticed a curious thing: "Strangers were more standoffish, more deferential," he recalls.

"I found that people treated me differently once I started shaving my head, which made me wonder whether my experience was unique," says Mannes. (Read more)